Jack for heel-nailing machines.



J. H. POPE.

m1; FOR HEEL NAILING MACHINES.

APPLICATION FILED MAY 17, 1901. RENEWED JAN. 10, 1912. 1,090,228, Patented Mar. 17, 1914 2 SHEETS-SHEET 1.

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JACK FOR HEEL NAILING MACHINES.

APPLICATION FILED MAY 17, 1901. RENEWED JAN. 10, 1912.

2 BHEETSBHEET 2.

Patented Mar. 17, 1914.

AWN

UNITED @IATES PATENT @Fhlfllil.

JOSEPH H. POPE, OF BROCKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 013 BOSTON, MASSACHUSETTS, A CORPORATION OF NEW J EBSEY.

Specification of Letters Patent.

Patented Mar. 17, 1914:.

Application filed May 17, 1901, Serial No. 60,822. Renewed January 10, 1912. Serial No. 670,512.

To all whom it may concern Be it known that I, J osnrn H. Porn, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented an Improvement in Jacks for Heel-Nailing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to shoe supports and more particularly to jacks for sustaining in working position in a heeling machine a last carrying a shoe to be operated upon.

The present embodiment of the invention is shown adapted for use in a heel nailing machine of the type of that shown in U. S. Letters Patent, No. M6585, granted Feb. 2 1891. It will be understood, however, that the invention is not restricted in its application to machines of the nature of that shown in this patent.

ln attaching heels to shoes upon the last the last is positioned at the heel upon a last pin entering the pin hole of the last. in the manufacture of lasts the pin hole of the last is commonly so arranged that it is centrally located at the cone with reference to the sides of the last and is substantially perpendicular to the sole of the last. It will be seen that with this arrangement the position with relation to the sides of the last of the point at which the prolongation of the pin hole would intersect the sole of the last will vary according to the particular contour of the last being operated upon. As is well-known, the lateral slope of the last at the heel in the direction of its height may vary considerably in dill'ercnt lasts. For example for rights and lofts the slope is in opposite directions. Its amount varies with other considerations such as the size or style of the last used.

In positioning a shoe in a. heel attaching machine it is necessary that the sole of the last at the heel shall have a predetermined position in the machine in the direction of the width of the shoe. The present invention comprises a jack having provision for shifting laterally one end of a last in order to compensate for variation in position of the pin hole, or otherwise, to properly position the shoe.

The jack herein shown and described comprises a base, a head provided with means for sustaining a last at the toe and at the cone, said head being movably supported upon the base, and means carried by the base for n'loving the head in a direction laterally of the last. The head herein shown is pivotnlly mounted upon the base and the point of pivotal connection is in ad vance of the heel end of the last.

The invention also consists in an improved device for supporting the cone of the last. According to the arrangement shown there is provided a plate having a pin projecting therefrom to enter the pin hole of the last. The plate is arranged for adjustment in a vertically curved path longitudinally of the last for the purpose of bringing the surface of the )late into even engagement with the cone of the last. The construction is preferably such that said plate may be freely movable upon its supporting means in order that it may accommodate itself to the slope of the cone of the last. If desired the plate may be clamped in fixed position, in the construction shown, in order that the last may be given a predetermined slope longitudinally in the machine. '..he invention also consists in details of construction and combinations of parts which are hereinafter described and defined in the appended claims.

lligure 1 of the drawings shows in side elevation a jack embodying my invention in one of the best forms now known to me, a last and a shoe being shown in position on the jack. Fig. 2 is a top view with the last removed. Fig. 53 is a vertical longitudinal section, with the screw posts in clevation. Fig. l shows the upper end of the post and the tipping holder. Fig. 5 shows two views of the device or plate for support ing the cone of the last. .Fig. (5 shows two views of the tipping holder, and Fig. 7 is a section in the line .60, Fig. 5, of the device or plate to sustain the cone of the last.

Referring to the drawing, A represents a suitable base herein shown as planed at a to oonstitluze guiding faces to engage and be slid in any suitable guidcway, as provided for in United States Patent No. 44:6,885, which patent shows suitable means for holding a heel and for attaching the same to a shoe. in the machine of the patent referred to the shoe is held on a metallic last or block pivotally mounted upon an upright standard. The upper side of the base is planed or made smooth, see Fig. 2, to receive the lower planed or faced end of a head B, a pivot as b uniting the head to the base so that the head may be swung in the arc of a circle on said base about said pivot. To pre vent the head from being lifted from the base, 1 have herein shown suitable lugs as 6 connected to the head by screws 6, said lugs having their ends bent to embrace ears a of the base. The base is arovided with a rock shaft 0 having a suitable handle 0 by which to turn the shaft, and having a second arm 0 which enters a hole in a steel block 0 inserted in an opening at the underside of the head. By moving the rock shaft C the arm 0 will cause the head to be swung in either direction. about the pivot b and to be frictionally maintained in adjusted position.

The head at that end thereof nearest its pivot Z2 is provided with rest or device (Z to sustain the toe end of the last, said device having a screw-threaded shank as (Z which is extended loosely through a sleeve (Z forming part of the head. Said sleeve has a stud or pin (Z which enters a longitudinal groove (Z in said shank, so that by rotating in the proper direction a nut as (Z surrounding said shank, the toe rest may be raised to adapt it to occupy any desired position. The opposite end of the head receives a screwthreaded post 6 having a longitudinal groove as e which is entered by a stud e to prevent the post from turning when the latter is being adjusted vertically, which may be done by rotating a nut e surrounding said post and resting on the upper end of the head.

The post is split, as at 0 see Fig. 4, and is provided as represented with a clove-tailed Way 6 which receives a dove-tailed projeotion f of a tipping holder f. The upper side of said holder presents a space with opposed undercut walls F, a stud f rising in the center of said space. The tipping holder is provided with a pin f which is normally pressed upwardly by a suitable spring f. This tipping holder may be left loose, or if it is desired to have it stationary it may be clamped in the upper split end of the post by means of a suitable clamp screw as 6 The plate 9 having the pin 9 to enter the usual hole in the cone of the last, is detachably mounted upon the tipping holder, and to enable said plate to be readily attached and detached, I have provided it at its underside with a dovetailed projection g having as represented a central hole To apply the device or plate to the tipping holder, the projection g will be placed on the tipping holder so that it will enter the space of the tipping holder, and by turning the plate one quarter around, the beveled ends of the projection 9 see Fig. 5, are,

made to engage the undercut walls of the holder, and the locking device f enters a suitable notch in the underside of the plate, thus retaining it in its operative position. Viewing Fig. 7 it will be observed that the upper side of the plate is concaved to fit the convexity of the cone of the'last and prevent splitting of the last. I employ anumber of these devices or plates of different shapes to conform to various shapes of the .cones of the lasts so that whatever the shape of the cone of the last it may be firmly sustained on the plate.

Operation: Assuming that a shoe to which a heel is to be attached is mounted on a last H, the hole in the cone of the last will be placed over the last pin 9', and the toe or forepart of the last will be sustained on the toe rest. As already stated, difierent lasts vary considerably in the shapes of their cones and positions of the pin holes, and if the heel seat end of the shoe does not come properly in position with relation to the end of the heel which is to be nailed to the sole of the shoe, the workman will turn the handle 0 and swing the head more or less about its pivot until the heel seat end of the sole and the heel are properly registered. The nuts (Z and 6 will be turned to secure the vertical positions desired for the plate sustaining the cone of the last and for the toe rest. In the ordinary use of the jack the tipping holder will be left loose in order that it may automatically adjust its position to the shape of the cone of the last. In some cases however, as when it is desired to secure an extra pressure on the breast of the heel, the tipping holder will be secured in position by the clamping screw 6 This invention is not limited to the exact construction of parts shown, and various modifications may be made therein without departing from my invention.

I Having described my invention, what I claim and desire to secure by Letters Patent 1S 1. In a machine of the class described, a last holding ack comprising a slidable base, a head having means to sustain the toe and cone of a last, saidhead being pivoted on said base near one end thereof, and means in engagement with said head at the other end of said base to swing the head on the base to accurately position the heel end of the last.

2. A jack comprising a base, a pivoted head provided with means to support the cone and the toe of the last, a rock-shaft in said base having an arm in engagement with said head, and means to turn the shaft to swing said head on said base.

3. In a last holding jack, a head provided with vertically adjustable means to support the cone and toe of a last, a base on which said head is pivoted to have a limited amount of swinging movement, and a lip and a ledge at opposite ends of said head coacting as described to retain the head seated 011 the base as the head is moved over the base about its pivot.

a. In a last holding jack, a head provided with means to support the cone and toe of a last, a base, a pivot between said head and base at that end thereof farthest from the means supporting the cone of the last, and a rock-shaft in said base having an arm to engage said base at its underside substantially in line with the means for supporting the cone of the last, the movement of said rock shaft moving said head over said base.

5. A last holding jack, having in. combination, a base constructed for sliding movement, a head arranged for horizontal pivotal movement upon said base about a pivot in advance of the heel end of the last, means for imparting movement to said head in either direction about its pivot and means carried by said head for sustaining a last at the toe and at the cone.

(3. A jack comprising a base, a head hav ing a toe rest and a vertically adjustable post, means at the upper end of said. post to engage and support the cone of the last, said means being free to slide in the are of a circle transversely with relation to the longitudinal axis of the post, means to clamp and hold said device in operative position, and a pivotal connection between said head and base, said pivotal connection being located nearest that end of the head having the toe rest.

7. A jack comprising a head having a post provided with a holder having a circular recess with horizontal dove-tailed ways, and a detachable plate having a last pin, and provided with a horizontally extending curved dove-tailed projection to enter and slide in said circular dovetailed recess.

8. A jack comprising a head having a post provided with a holder having a curved dove-tailed recess, a detachable plate having a last pin and provided with a curved dovetailed projection to enter said curved clovetailed recess, and a locking device to retain the plate in operative position in the holder.

9. A jack comprising a post provided at its end with a recess, a tipping holder having a tongue to lit in the recess and being arranged for movement in a vertically curved path to accommodate itself to the longitudinal slope of the cone of the last, means for clamping the tipping holder against movement in said curved path, the tipping holder having projections forming undercut ways on one side and a spring locking pin disposed on one of said projections, together with a last pin plate having a portion shaped to fit within the undercut ways of the tipping holder and a recess to receive the locking pin.

10. A last holding jack having, in combination, a base constructed for sliding movement, a head arranged for horizontal movement upon the base about an axis substan tially in vertical alinemcnt with one end of the last, means for imparting turning movement to said head in either direction, and means carried by the head for sustaining a last at the toe and at the cone.

11. A last holding jack having, in combination, a base constructed for sliding move- 1nent,a head arranged for horizontal turning movement upon the base, means carried by the head for sustaining a last, and means for imparting turning movement to the head comprising a rock shaft disposed below the head, a pin projecting from the shaft into operative relation with the head, and means for rocking the shaft in either direction to effect turning of the head.

19,. A last holding jack having, in combination, a base, a head having at one end a support for the toe of a last and at the other end a support for the cone of a last, the head being arranged for turning movement upon the base about an axis substantially in vertical line with one end of the last, and

means for imparting a limited turning movement to the head comprising a rock shaft and a pin projecting from the rock shaft into operative relation with the head. In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOSEPH H. POPF.

lVitnesses:

JOHN C. EDWARDS, lVIARGARET A. DUNN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

